Patents by Inventor Michael A. Roby

Michael A. Roby has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4077644
    Abstract: A platform hand truck having an integrally formed rectangular platform preferably of synthetic resin with a planer top deck and a depending rim flange. The deck is reinforced on its underside with a patterned rib structure provided with a plurality of recesses for receiving caster-mounting adapter blocks of synthetic resin in selective arrangements. The adaptor blocks are designed to embrace reinforcing angles supporting caster plates carrying the platform. A removable cover of plastic material is preferably provided for enclosing the platform.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: March 7, 1978
    Assignee: Rubbermaid Commercial Products Inc.
    Inventors: Michael A. Roby, Glen E. Tomblin
  • Patent number: 4013127
    Abstract: A fire extinguisher package or assembly adapted for attachment to the top rim of a waste receptacle. A small translucent plastic container holds pressurized extinguisher liquid and a heat-activated valve for discharging and directing the liquid is connected to the top of the container and enclosed in a protecting shroud. The shroud or a cover therefor is mounted on the receptacle rim by releasable attaching means.
    Type: Grant
    Filed: January 22, 1975
    Date of Patent: March 22, 1977
    Assignee: Rubbermaid Commercial Products, Inc.
    Inventors: Kenneth S. Tenney, Michael A. Roby
  • Patent number: D374321
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: October 1, 1996
    Assignee: Rubbermaid Commercial Products Inc.
    Inventors: Jon Mandell, Vicky Michael, Michael Roby, Glen E. Tomblin
  • Patent number: D395530
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: June 23, 1998
    Assignee: Rubbermaid Commercial Products Inc.
    Inventors: Jon Mandell, Vicky Michael, Michael Roby, Glen E. Tomblin
  • Patent number: D395531
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: June 23, 1998
    Assignee: Rubbermaid Commerical Products Inc.
    Inventors: Jon Mandell, Vicky Michael, Michael Roby, Glen E. Tomblin